I love those charmingly blocky 3D graphics shown.

I enjoyed this episode. It was interesting to see the quality of graphics editing apps on specialized machines back in 1984. Those were quite a contrast from the Apple II program at the beginning of the episode, which was poor as you'd expect from Apple II graphics. There was definitely a huge difference between personal computers vs. specialized systems in those days.
This episode has a very interesting demo of an early Silicon Graphics workstation with hardware 3D acceleration. The rendering performance looks good, and it's easy to see why this company was so successful with their 3D technology back then.
The last demo of a high-end graphics system shows some features that will be familiar to users of modern PC-based editors.

There were quite some things I learned from that video. Obviously even some professionals had to use simple 4 colour graphics devices. The SGI-part really impressed me, not because of their 3d-graphics, but because of them beeing able to switch programmes just by inserting another diskette (has that been edited?) The paintbox reminds me of a machine our regional TV-station once proudely showed to it's viewers. I finally understand how it works.